EP3904434A4 - Verfahren zur herstellung eines supersaugfähigen polymers - Google Patents

Verfahren zur herstellung eines supersaugfähigen polymers Download PDF

Info

Publication number
EP3904434A4
EP3904434A4 EP20885848.0A EP20885848A EP3904434A4 EP 3904434 A4 EP3904434 A4 EP 3904434A4 EP 20885848 A EP20885848 A EP 20885848A EP 3904434 A4 EP3904434 A4 EP 3904434A4
Authority
EP
European Patent Office
Prior art keywords
absorbent polymer
super absorbent
preparing super
preparing
polymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20885848.0A
Other languages
English (en)
French (fr)
Other versions
EP3904434B1 (de
EP3904434A1 (de
Inventor
Kyu Pal Kim
Kyunghoon Min
Gicheul KIM
Yoon Jae MIN
Ki Hyun Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Chem Ltd
Original Assignee
LG Chem Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020200146310A external-priority patent/KR102671013B1/ko
Application filed by LG Chem Ltd filed Critical LG Chem Ltd
Priority claimed from PCT/KR2020/015363 external-priority patent/WO2021091240A1/ko
Publication of EP3904434A1 publication Critical patent/EP3904434A1/de
Publication of EP3904434A4 publication Critical patent/EP3904434A4/de
Application granted granted Critical
Publication of EP3904434B1 publication Critical patent/EP3904434B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/008—Treatment of solid polymer wetted by water or organic solvents, e.g. coagulum, filter cakes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
    • B01J20/267—Cross-linked polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3021—Milling, crushing or grinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3028—Granulating, agglomerating or aggregating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/04—Polymerisation in solution
    • C08F2/10—Aqueous solvent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/46—Polymerisation initiated by wave energy or particle radiation
    • C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/46—Polymerisation initiated by wave energy or particle radiation
    • C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
    • C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
    • C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
    • C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/075—Macromolecular gels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/245—Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/05—Alcohols; Metal alcoholates
    • C08K5/053—Polyhydroxylic alcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/109—Esters; Ether-esters of carbonic acid, e.g. R-O-C(=O)-O-R
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/156—Heterocyclic compounds having oxygen in the ring having two oxygen atoms in the ring
    • C08K5/1565—Five-membered rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
    • B01J2220/68—Superabsorbents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C08K2003/3081—Aluminum sulfate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
EP20885848.0A 2019-11-05 2020-11-05 Verfahren zur herstellung eines supersaugfähigen polymers Active EP3904434B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20190140502 2019-11-05
KR1020200146310A KR102671013B1 (ko) 2019-11-05 2020-11-04 고흡수성 수지의 제조 방법
PCT/KR2020/015363 WO2021091240A1 (ko) 2019-11-05 2020-11-05 고흡수성 수지의 제조 방법

Publications (3)

Publication Number Publication Date
EP3904434A1 EP3904434A1 (de) 2021-11-03
EP3904434A4 true EP3904434A4 (de) 2022-03-23
EP3904434B1 EP3904434B1 (de) 2024-02-28

Family

ID=75913614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20885848.0A Active EP3904434B1 (de) 2019-11-05 2020-11-05 Verfahren zur herstellung eines supersaugfähigen polymers

Country Status (5)

Country Link
US (1) US20220111351A1 (de)
EP (1) EP3904434B1 (de)
JP (1) JP7246780B2 (de)
CN (1) CN113412301B (de)
BR (1) BR112021016744A2 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2399944A1 (de) * 2009-02-17 2011-12-28 Nippon Shokubai Co., Ltd. Wasserabsorbierendes harzpulver auf polyacrylbasis und verfahren zu seiner herstellung
WO2014168858A1 (en) * 2013-04-10 2014-10-16 Evonik Corporation Particulate superabsorbent polymer composition having improved stability and fast absorption
WO2015163516A1 (en) * 2014-04-25 2015-10-29 Songwon Industrial Co., Ltd. Surface-crosslinking and cooling of surface-crosslinked water-absorbent polymer particles in the production thereof
US20170066862A1 (en) * 2014-03-03 2017-03-09 Nippon Shokubai Co., Ltd. Method for producing polyacrylic acid (salt)-based water-absorbable resin
EP3225649A1 (de) * 2015-11-03 2017-10-04 LG Chem, Ltd. Verfahren zur herstellung eines stark absorbierenden polymers

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02193665A (ja) * 1989-01-24 1990-07-31 Oji Paper Co Ltd 使い捨ておむつ用吸収体を製造する方法
US5369148A (en) * 1990-04-27 1994-11-29 Nippon Shokubai Co., Ltd. Method for continuous agglomeration of an absorbent resin powder and apparatus therefor
ATE214906T1 (de) * 1994-09-09 2002-04-15 Procter & Gamble Methode zur herstellung einer absorbierenden struktur
US6150469A (en) * 1996-02-02 2000-11-21 Nippon Shokubai Co., Ltd. Method of producing a hydrophilic resin
JP3753828B2 (ja) * 1996-02-13 2006-03-08 株式会社日本触媒 吸水剤組成物およびその製造方法並びに吸水剤
JP4364020B2 (ja) * 2003-03-14 2009-11-11 株式会社日本触媒 吸水性樹脂粉末の表面架橋処理方法
EP1462473B1 (de) * 2003-03-14 2011-07-06 Nippon Shokubai Co., Ltd. Verfahren zur Oberflächenvernetzung eines wasserabsorbierenden Harzpulvers
SG159540A1 (en) * 2005-02-15 2010-03-30 Nippon Catalytic Chem Ind Water absorbing agent, water absorbing article and method for production of water absorbing agent
JP5132927B2 (ja) * 2005-12-22 2013-01-30 株式会社日本触媒 吸水性樹脂の製造方法
TWI377222B (en) * 2005-12-22 2012-11-21 Nippon Catalytic Chem Ind Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin
WO2011117245A1 (de) * 2010-03-25 2011-09-29 Basf Se Verfahren zur herstellung wasserabsorbierender polymerpartikel
KR102555380B1 (ko) * 2018-01-19 2023-07-12 주식회사 엘지화학 고흡수성 수지 및 이의 제조 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2399944A1 (de) * 2009-02-17 2011-12-28 Nippon Shokubai Co., Ltd. Wasserabsorbierendes harzpulver auf polyacrylbasis und verfahren zu seiner herstellung
WO2014168858A1 (en) * 2013-04-10 2014-10-16 Evonik Corporation Particulate superabsorbent polymer composition having improved stability and fast absorption
US20170066862A1 (en) * 2014-03-03 2017-03-09 Nippon Shokubai Co., Ltd. Method for producing polyacrylic acid (salt)-based water-absorbable resin
WO2015163516A1 (en) * 2014-04-25 2015-10-29 Songwon Industrial Co., Ltd. Surface-crosslinking and cooling of surface-crosslinked water-absorbent polymer particles in the production thereof
EP3225649A1 (de) * 2015-11-03 2017-10-04 LG Chem, Ltd. Verfahren zur herstellung eines stark absorbierenden polymers

Also Published As

Publication number Publication date
JP2022520790A (ja) 2022-04-01
EP3904434B1 (de) 2024-02-28
JP7246780B2 (ja) 2023-03-28
CN113412301B (zh) 2023-07-28
KR20210054474A (ko) 2021-05-13
CN113412301A (zh) 2021-09-17
US20220111351A1 (en) 2022-04-14
BR112021016744A2 (pt) 2022-05-24
EP3904434A1 (de) 2021-11-03

Similar Documents

Publication Publication Date Title
EP3747938A4 (de) Verfahren zur herstellung von supersaugfähigen polymeren
EP3750953A4 (de) Verfahren zur herstellung von supersaugfähigen polymeren
EP3406655A4 (de) Verfahren zur herstellung eines stark absorbierenden polymers
EP3564295A4 (de) Verfahren zur herstellung eines supersaugfähigen polymers
EP3190216A4 (de) Verfahren zur herstellung einer supersaugfähigen polymerfaser
EP3730539A4 (de) Verfahren zur herstellung eines supersaugfähigen polymers
EP3412711A4 (de) Verfahren zur herstellung eines porösen supersaugfähigen polymers
EP3939756A4 (de) Feinschneidevorrichtung für superabsorbierendes polymerhydrogel
EP3636697A4 (de) Superabsorbierendes polymer und verfahren zur herstellung davon
EP3719059A4 (de) Verfahren zur herstellung eines stark absorbierenden polymers
EP3290447A4 (de) Verfahren zur herstellung eines supersaugfähigen harzes
EP3608359A4 (de) Verfahren zur herstellung eines stark absorbierenden polymers
EP3502168A4 (de) Verfahren zur herstellung von superabsorbierendem harz und nach diesem verfahren erhaltenes superabsorbierendes harz
EP3133090A4 (de) Verfahren zur herstellung eines superabsorbierenden harzes und in diesem verfahren hergestelltes superabsorbierendes harz
EP3290448A4 (de) Verfahren zur herstellung eines supersaugfähigen harzes
EP3885397A4 (de) Superabsorbierendes polymer und verfahren zur herstellung davon
EP3375809A4 (de) Superabsorbierendes polymer und verfahren zur herstellung davon
EP3757153A4 (de) Supersaugfähiges polymer und verfahren zur herstellung davon
EP3450485A4 (de) Superabsorbierendes polymer und verfahren zur herstellung davon
EP3981827A4 (de) Verfahren zur herstellung von supersaugfähigen polymeren
EP3763771A4 (de) Verfahren zur herstellung eines superabsorbierenden polymers und superabsorbierendes polymer
EP3838968A4 (de) Verfahren zur herstellung von superabsorbierenden polymeren
EP3722352A4 (de) Verfahren zur herstellung eines superabsorbierenden polymers und superabsorbierendes polymer
EP3677621A4 (de) Verfahren zur herstellung einer superabsorbierenden polymerfolie
EP3770206A4 (de) Verfahren zur herstellung eines supersaugfähigen polymers

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210726

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20220223

RIC1 Information provided on ipc code assigned before grant

Ipc: C08K 3/36 20060101ALI20220217BHEP

Ipc: C08J 3/12 20060101ALI20220217BHEP

Ipc: C08J 3/075 20060101ALI20220217BHEP

Ipc: C08F 6/00 20060101ALI20220217BHEP

Ipc: C08F 20/06 20060101ALI20220217BHEP

Ipc: C08F 20/04 20060101ALI20220217BHEP

Ipc: C08F 2/10 20060101ALI20220217BHEP

Ipc: C08K 3/013 20180101ALI20220217BHEP

Ipc: C08K 5/109 20060101ALI20220217BHEP

Ipc: C08K 5/053 20060101ALI20220217BHEP

Ipc: C08J 3/24 20060101AFI20220217BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20230613

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602020026592

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: C08J0003240000

Ipc: C08F0002010000

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: C08J0003240000

Ipc: C08F0002010000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: C08F 2/10 20060101ALI20231108BHEP

Ipc: C08K 5/109 20060101ALI20231108BHEP

Ipc: C08K 5/053 20060101ALI20231108BHEP

Ipc: C08K 3/36 20060101ALI20231108BHEP

Ipc: C08J 3/24 20060101ALI20231108BHEP

Ipc: C08J 3/12 20060101ALI20231108BHEP

Ipc: C08J 3/075 20060101ALI20231108BHEP

Ipc: C08F 6/00 20060101ALI20231108BHEP

Ipc: C08L 33/02 20060101ALI20231108BHEP

Ipc: C08F 2/50 20060101ALI20231108BHEP

Ipc: C08F 2/48 20060101ALI20231108BHEP

Ipc: C08F 2/44 20060101ALI20231108BHEP

Ipc: C08F 2/01 20060101AFI20231108BHEP

INTG Intention to grant announced

Effective date: 20231129

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20240129

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020026592

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D